Even as Russia announced a ceasefire starting Monday morning and the opening of humanitarian corridors in several areas, its armed forces continued to pummel Ukrainian cities, with multiple rocket launchers hitting residential buildings. The limited ceasefire announcement came a day after hundreds of thousands of Ukrainian civilians attempting to flee to safety were forced to shelter from Russian shelling of cities in Ukraine’s center, north and south. Officials from both sides planned a third round of talks Monday. Russian forces continued their offensive, opening fire on the city of Mykolaiv, 480 kilometers south of the capital of Kyiv, Ukraine’s General Staff said Monday morning. Rescuers said they were putting out fires in residential areas caused by rocket attacks. Read: Russia-Ukraine War: What to know on Russia's war in Ukraine Shelling also continued in the suburbs of Kyiv, including Irpin, which has been cut off from electricity, water and heating for three days. “Russia continues to carry out rocket, bomb and artillery strikes on the cities and settlements of Ukraine,” the General Staff said. “The invaders continue to use the airfield network of Belarus to carry out air strikes on Ukraine.” The Russians have also been targeting humanitarian corridors, taking women and children hostage and placing weapons in residential areas of cities, according to the General Staff.